From All Things Digital:
Verizon Wireless’s Tuesday iPhone announcement will be headlined by President and COO Lowell McAdam, but there will likely be a special guest as well.
Apple CEO Steve Jobs.
While the appearance isn’t 100 percent assured, sources in a position to know tell me that, barring any unforeseen circumstances, Jobs will likely join McAdam onstage in New York when he announces the addition of the iPhone to its handset lineup.
.. and from Wall Street Journal’s News Alert @ 5:47pm:
Verizon Wireless is finally getting Apple’s popular iPhone. The wireless carrier is holding an event in New York Tuesday to announce the news.
It seems that Gizmodo will not be attending the event. They leaked some iPhone info in the past, and have been banned from Apple press events.